thats my big complaint - on the highway with the cruise set at 70 it hits 4th gear and any minor hill or a strong headwind, it creeps back down to 65, then downshifts and gets back to 70 - repeat for length of trip.
it'll run 85-90 no problem, I do it one emergency calls all the time, just wont hold 70 mph in 4th gear in windy west texas to save its life.
avg about 12MPG with mostly highway driving
5.13, auto and 37"s, bumpers, etc
fwiw, it actually seems to have gotten a little better with the 37s than the 35's
well that and the paper thin sheetmetal....
dunno if the extra 58HP - last I heard, the pentastar was detuned from 290 to 260 will help THAT much, but I'm betting the 5sp auto will be a blessing
that said, I dunno if things fell into place just right, I might look at a 12, IF all my shit will swap over
but it'd be a tough sell with my lifetime powertrain warranty.